Clamp for cultivator tools



JulyflO, 1923. AGUZ v w. I .BEALL CLAMP FOR CULTIVATOR TOOLSl Filed Feb. 16'. 1920 mmw'i www# 6 Patented July 10,11 923.

" i 1.46'1.soi?A WILLIAMIL; BEALL, on CHATTANOOGA; ,TENNESSEE ssIGNoR 'To' f 'Huellai'ns'riiinjcontraint,'A" connortn'rioiv,or NEWJERSEY.y j

-' .j cLmr ronouimivaron moors.

. Application 4nieu rebruarylvie, 1920.# serieuNo.',359,688.-Q

To all whom item4]l concern.' 1

Be it known that I, WIILIAM'L. BEALL, a.

citizenof the" lllnited'States,l residing at f Chattanooga, in the county of l-lamilton and State of Tennessee, have. invented certain( -new and useful lmprovements in Clamps for Cultivator Tools, of which vthe following is a full, clear, and exact specification.

This invention relates to clamping means for adjustably securing the Shanks-of cultivator tools to the supporting frame structure of the machine, and. particularly to the type of cultivators which includes a plurality of relatively slidable tool-supporting bars, for the purpose of regulating `the distance between tools. v v

An object of the invention is to improve the method of supporting cultivating tools, so that while such tools are rigidly secured against displacement by the clamping means, the latter by straddling a plurality yof bars, ties them together to resist bending strains from the worm'ng tools. A further object of the invention is to permit a less coarse than usual vertical adjustment of the tool, while the clamp may be of equal strength to clamps of this type which are ordinarily in use. n g

Another object of the invention is to provide an arrangement for preventing a U.- shaped clamp from spreading at its open end.

These objects are accomplished by vmeans of a U-shaped clamping member which is arranged to be supported by a plurality of tool supporting bars and the arms of which are of I or similar reduced cross Vsection at the points where they engage a plurality of notches in the shank of the tool supported.

F ig. l is a view of a longitudinal vertical section of the clamp and includes a fragment of a tool shank, and shows the tool supporting beams in cross section;

Fig. 2 is a plan view of the clamp; and

Fig. 3 shows in plan the tool supporting bars, clamps and tool Shanks.

U-shaped clamps of the general type shown in the drawings which are formed by punching and bendingoperations, are usually of uniform cross section, and in that case if the tool shankswhich are secured by the clamp are notched to receive the clamp, the notches are necessarily coarse and prevent anything but a comparatively coarse vertical adjustment of the tool.' The present clamp,

to utilizerafreduced I being 0f Y.other than uniformv cross'-'secti`on,v Q

makes'it possible without saoricingstrength g portion of thev clamp for l l i 1.x.. providing for liner adjustment' of the tooLAf` f a clamp -isintended usually-has threeytrans'fverse Y tool supporting bars', l," l the :.v alternate 1f 'j' `tools being supported by different bars, and two of the bars being longitudinally adjustable so that the tools which come nearest the rows of plants may be adjusted toward or I i away from each other.

The function of the clamp is to secure they tools against displacement both longitudinally 'of the bars and also in a vertical direction. To-provide against vertical displacement of the tool, it is preferable to cut or punch out notches 2 from one edge ofthe tool shank 3. The perforated web 4 of the U-shaped clamping member 5 lits ,twol of said notches when in clamping relationwith the toolfshank. The U-shaped clamping v. y

member straddles at least two of the bars l for the purpose of being Well supported and utilizing a plurality of such bars for resist r ing bendingv strains in one of the bars. The pin 6 and thetool shank 3, respectively, pass through the punched out openings y and 8- of we esl Inl the operation of they device, desired vertical adjustment'of the tool shank 3 becomes possible by removing the tapered pin 6 and shifting the'clamp to the right, Fig. Al, out of engagement with the notches in the tool shank.

When the pin 6 isdriven down, the webl i' f' of the U-shaped clamping member enga-ges two of the notches in shank 3, and draws the shank firmly against the side of the supporting'bar l which isopposite to` that engaged by the tapered pin 6. The pin, being located close to the inner end of theU, in its action,

has little tendency. to expand theclamp, as would be the case if the pin were located at the outer end of the clamp andthetool 4 shank at the inner end of the clamp.. The two arms of the clamp 5 are held in vnormal relation and against spreading by the tool shank 3 whichat its notched surfaceengages each of the arms. y i

While there is shown and described but one embodiment of the invention, it is to be understood that it is capable of many modifications. yvChanges,I therefogg in the, Construction-.and efrangeggent of )pente maybe made which do notfdpart romthefspirit and SC99@ 0f the iliolvent-on,` es, disclosed `in.vv

theV p'e'nded' 'clziims (Y 1. The combination with a nQtohed/shgnlgi of e cultivator tool, of a U-shapedclanp of the class described, said-Qlemphayillg arms` of non-uniform cross section whereby reduQQslpQz-'figns thexeoi .may engage notches e n Lid Shenkv.. a .Supporting ban; for said*- shenli hmmm and Wedgjng. means .Y for dllge-hee-lmpalims. intov notches .fn/the,

shank mdbindng the, ,shankeegainsn the Supporting ben, i o. L

2di Y Thegmbnetign, vwth notchedjshank 0f efeultivetor tool, oie U-shaped,chunpof theK @less described, said clamp Lbowing `arms of lcljossvsectiqn, whereby thewehpoitions 0f the., may .engegeexiten' Ot.; the

notches in said shank, a supporting ber for Seid Shank @Reclame and, wedeue foydrwng ,sedeporionelthe 'lap mis into 'the hatches"of'shal and binding the'shaok @sailnet the Supporting bar- 3. In a device of the class described, a U- shapedmembemformedso bent I stock, the web of the two arms of the U-shaped member being perforated,-- a i-Wed'ge and*` tool@ shank `1 passing.A through 1. `saidfperforetions; said toolI shankbengy notehed to engagethe,4A

web,` and ,a supporting. bern passingthroughgk; the U memberbet-Ween). the ewgdge and; wop [Sha-Ilk y 4 f v In testimonyv ovhereof-I signature,`

lvif-111mm.LgAB-iimLLa` A* 

